Question 100600
f every 9th person in line for concert tickets gets a free t shirt, and every 24th person gets a free ticket, which person will be the first to a t-shirt and free ticket? how do you know?
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Wouldn't it be the first number that is a multiple 9 and 24?
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9 * 24 = 216 would be one, but is it the first one?
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No, 72 would be the first one, 72 divided by 24 = 3. A prime number, it's the lowest. 
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